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One of the most common causes of inaccurate melting points is too rapid heating of the melting point bath. Under these circumstance, how will the observed melting point compare to the true melting point?
The reaction 2NOCl(g) → 2NO(g) + Cl2 (g) has an activation energy of 100.0 kJ/mol and a rate constant at 400.0 K of 8.5 x 10-6 mol-1 L s-1. Determine the rate constant at 450 K.
methanol, CH3OH can be produced through the reaction of CO and H2. if 75.o grams of CO is used and the typical yield is 79.8%, what mass of methanol is likely to be produced.
What mass of CaCl is needed to make 350 mL of a 0.233M CaCl solution?
What is the velocity (m/s) of a doubly protonated ion with a m/z ration of 324.9, which has been accelerated to a kinetic energy of 0.75 MeV?
Calculate the concentration of NO3- ion remaining in solution.
what collor do these emmisions produce. b) what si the energy in KJ of these emisions for 5.00 g each of the cloride salts of Sr and Ba
Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 rm J/(g cdot {^circ C}) and 1.00 rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.
Carbon dioxide and water form during combustion of propane. How many grams of water vapor form when 5.39 g of propane react
An organic sample (3 grams mass) is taken from an archeological site. The sample has a beta emission rate of 4.3 counts per minute. These decays originate predominantly from carbon-14 with a half-life of 8270 years. If the abundance of carbon-14 i..
2 liquids, A and B, have the same molecular weight. Samples of each are placed on temperature probes and allowed to evaporate. After a period of time Liquid A had a change in temp
one cup is equivalent to 237 cm^3. In 1 cup of oil has a mass of 216 g. What is the density of olive oil in g/cm^3
Let's say that you are given a 0.215g of unknown weak acid and asked to dilute with 75 mL of DI water. You then use a standardized 0.125 M NaOH to titrate the unknown acid solution
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